The FT's head of Lex Jonathan Guthrie takes a high-speed tour of Mayfair, the City of London and Canary Wharf to see how leaving the EU will affect the capital's financial landmarks. See if you get the FT for free as a student (http://ft.com/schoolsarefree) or start a £1 trial: https://subs.ft.com/spa3_trial?segmentId=3d4ba81b-96bb-cef0-9ece-29efd6ef2132

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